Rockwell apparatus
常见例句
- As for the problem of surface Rockwell hardness measurement of deep hole in measurement field, this article develops a kind of portable micro-control surface Rockwell apparatus.
針對測量領域深孔表麪洛氏硬度測量存在的問題，研制了一種便攜式微控表麪洛氏硬度計。 返回 Rockwell apparatus